#include <stdio.h>
int main()
{
    int a, b, c, d;
    printf("Please enter a number:");
    scanf("%d", &a);
    b = a * a * a;
    printf("%d*%d*%d=%d=", a, a, a, b);
    for (d = 0, c = 0; c < a; c++)
    {
        d += a * a - a + 1 + c * 2;
        printf(c ? "+%d" : "%d", a * a - a + 1 + c * 2);
    }
    if (d == b)
        printf(" Y\n");
    else
        printf(" N\n");

        return 0;
}

//熊贤豪